package massive;

class Massive {
    public static void main(String args[]) {
	int month_days[] = new int[12];
	month_days[0] = 31;
	month_days[1] = 28;
	month_days[2] = 31;
	month_days[3] = 30;
	month_days[4] = 31;
	month_days[5] = 30;
	month_days[6] = 31;
	month_days[7] = 31;
	month_days[8] = 30;
	month_days[9] = 31;
	month_days[10] = 30;
	month_days[11] = 31;
        
	System.out.println("В апреле " + month_days[3] + " дней.");
    }
}
